Global Patent Index - EP 1101359 A1

EP 1101359 A1 2001-05-23 - A VIDEO CODING SYSTEM

Title (en)

A VIDEO CODING SYSTEM

Title (de)

VIDEOKODIERUNGSSYSTEM

Title (fr)

SYSTEME DE CODAGE VIDEO

Publication

EP 1101359 A1 (EN)

Application

EP 99938387 A

Priority

  • EP 9905488 W
  • GB 9816540 A

Abstract (en)

[origin: WO0007375A1] A motion estimation method and system for a video coder are disclosed. The system comprises an input for a video image (6) to be coded. It also comprises a series of motion estimators of varying complexity, for estimating a motion vector field between the received image (6) and a reference image (5). The subsequent motion estimator in the series is selected by a control means (50) if a prediction error associated with the motion vector field estimated by the currently selected motion estimator exceeds a predetermined threshold. Smoothing means (10) and sub-sampling means (20) are provided. Preferably the two are inter-dependent.

IPC 1-7 (main, further and additional classification)

H04N 7/26

IPC 8 full level (invention and additional information)

H04N 7/26 (2006.01); H04N 7/36 (2006.01)

CPC (invention and additional information)

H04N 19/543 (2014.11); H04N 19/53 (2014.11); H04N 19/537 (2014.11); H04N 19/56 (2014.11)

Citation (search report)

See references of WO 0007375A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

GB 2340327 A 20000216; GB 9816540 D0 19980930; AU 5290299 A 20000221; EP 1101359 A1 20010523; WO 0007375 A1 20000210

INPADOC legal status


2007-08-08 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: KARCZEWICZ, MARTA

2007-08-08 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: OKTEM, LEVENT

2002-07-10 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20020102

2002-03-13 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: NOKIA CORPORATION

2001-08-08 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010621

2001-07-18 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: KARCZEWICZ, MARTA

2001-07-18 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: OKTEM, LEVENT

2001-05-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010228

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE